Makita SK104Z Makita SK104Z Instruction Manual - Page 6

en GB F I E P NL DK S N FIN J CN ROK PL HR H RUS CZ GR LT LV EST SLO SK M TR Checking the accuracy  Check the accuracy of your SK104 regularly and particularly before important measuring tasks. Checking the accuracy of the levelling A1 B1 A2 B2 5 m A1 B1 2.5 m 2.5 m Set the instrument on a tripod half-way between two walls (A+B) that are approx. 5 m apart. Place the Lock switch 3 in the "Unlocked" ( ) position. Direct the instrument at wall A and switch on the instrument. Activate the horizontal laser line or laser dot and mark the position of the line or the dot on wall A (-> A1). Rotate the instrument by 180° and mark the horizontal laser line or the laser dot in exactly the same way on wall B (-> B1). Then place the instrument at the same elevation as close as possible to wall A and again mark the horizontal laser line or the laser dot on wall A (-> A2) . Rotate the instrument by 180° again and mark the laser on wall B (> B2). Measure the distances of the marked points A1A2 and B1-B2. Calculate the difference of the two measurements. If the difference does not exceed 2 mm, then the SK104 is within tolerance. | (A1 - A2) - (B1 - B2) |  2 mm Operation 6 Makita SK104